Multiple topologies from glycopolypeptide-dendron conjugate self-assembly: nanorods, micelles, and organogels

TitleMultiple topologies from glycopolypeptide-dendron conjugate self-assembly: nanorods, micelles, and organogels
Publication TypeJournal Article
Year of Publication2012
AuthorsPati, D, Kalva, N, Das, S, Kumaraswamy, G, Gupta, SSen, Ambade, AV
JournalJournal of the American Chemical Society
Volume134
Issue18
Pagination7796-7802
Date PublishedAPR
Type of ArticleArticle
ISSN0002-7863
Abstract

Glycopolypeptides (GPs) were synthesized by ring-opening polymerization of glycosylated N-carboxyanhydride monomer and attached to hydrophobic dendrons at one chain end by ``click'' reaction to obtain amphiphilic anisotropic macromolecules. We show that by varying polypeptide chain length and dendron generation, an organogel was obtained in dimethylsulfoxide, while nanorods and micellar aggregates were observed in aqueous solutions. Assemblies in water were characterized by electron microscopy and dye encapsulation. Secondary structure of the GP chain was shown to affect the morphology, whereas the chain length of the poly(ethylene glycol) linker between the GP and dendron did not alter rod-like assemblies. Bioactive surface chemistry of these assemblies displaying carbohydrate groups was demonstrated by interaction of mannose-functionalized nanorods with ConA.

DOI10.1021/ja300065f
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)10.677
Divison category: 
Chemical Engineering & Process Development
Polymer Science & Engineering